2181621

素因数分解:

$3^1\times {\mathrm{13}}^3\times {\mathrm{331}}^1$

素因数の和:373

約数の個数: 16

約数和(自身を含む): 3160640

約数和(自身を除く): 979019

約数列:

[1, 3, 13, 39, 169, 331, 507, 993, 2197, 4303, 6591, 12909, 55939, 167817, 727207, 2181621]

約数ペア:

[(1, 2181621), (3, 727207), (13, 167817), (39, 55939), (169, 12909), (331, 6591), (507, 4303), (993, 2197)]